Lower extremity revascularization.
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Biomedical subjects
Publications and source records attributed to T J Bunt.
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Two cases of villous adenoma of the duodenum are reviewed. Surgical resection is complicated by the local anatomy but in 80 per cent of the patients may be limited to submucous resection via lateral duodenotomy. The two cases are compared to the 50 published case reports.
Twenty synthetic vascular graft infections are reviewed. Diagnosis of aortic shaft infections has been improved by combined CAT and Gallium scanning, with a 100 per cent sensitivity and specificity. An increasing incidence (70%) of gram-negative or resistant infections is noted, with a correspondingly high mortality. Delay in diagnosis resulted in an 100 per cent mortality versus 20 per cent when diagnosis was made rapidly. Mortality was usually from sepsis, but nearly half of the deaths occurred due to stroke or myocardial infarction.
A simple method of aortic graft plication with a retrocolic omental pedicle is described; plication should protect against both graft infection and graft enteric fistulas.
Decubitus ulcers were handled by an aggressive routine of early wide excision and immediate advancement-rotation flaps of the thigh under antibiotic coverage. Of 23 patients referred for decubitus ulcers in two years, 20 were so managed, with primary healing in 15 and secondary healing in an additional four. There has been one recurrence, one operative death, and two late deaths.
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Adhesion-related varices in rare instances cause lower gastrointestinal hemorrhage, suggested by a characteristic clinical history. We report two such cases. Mesenteric angiography is usually diagnostic. The mortality is 50%.
The spectrum, pathogenesis, and changing bacteriology of spontaneous abdominal aortic infections is presented. The classic presentation includes fever, positive blood cultures, and a pulsatile abdominal mass. However, most essential in the preoperative diagnosis is having a high index of suspicion. The bacteriologic spectrum is changing, with Salmonella now being the most common organism cultured. Principles of management include aggressive antibiotic therapy, excision of infected tissue, and extra-anatomic bypass. Long-term follow-up for late complications is important. With early recognition and aggressive combined medical and surgical management, increasing numbers of survivors are being reported.
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The first spontaneous Salmonella aortic graft infection is reported, being due to graft contamination via a graft enteric erosion. The high mortality of Salmonella aortic infection and gram-negative graft infections is noted.
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An ongoing prospective protocol of routine abdominal aortic angiography in the evaluation of patients presenting for elective abdominal aortic aneurysmorrhaphy was assessed for its efficacy in directing perioperative management. Eighteen per cent of 70 angiograms provided decisive information, and an additional 14% were potentially helpful in operative management; we therefore feel that routine angiography is a valuable part of the preoperative workup of patients with abdominal aortic aneurysms.